BMS 502

An inhibitor of DGK-α, DGK-ζ, and DGK-ι; (IC50s = 0.0046, 0.0021, and 0.0026 µM, respectively); selective for these DGKs over DGK-β, DGK-γ, and DGK-κ (IC50s = 1, 0.68, and 4.6 µM, respectively); increases IFN-γ levels and ERK phosphorylation in isolated human whole blood (EC50s = 0.28 and 0.52 µM, respectively); increases the proliferation of CD8+ T cells (EC50 = 0.065 µM), which express DGK-α and DGK-ζ but not DGK-ι; increases the frequency of CD69+ CD8+ T cells in combination with SIINFEKL in OT I mice